Newton Data Storage

Introduction

This section provides you with a detailed overview of the Newton's model for data storage and retrieval. First, we describe the Newton model as it differs from traditional models, then we cover some of the central concepts of this model, including:


Note:If you are writing an application from scratch, you'll need to make the calls described in this chapter. If you are using NewtApp (see Chapter 10, NewtApp), you won't make most of these calls--NewtApp takes care of them for you. In either case, however, the concepts described in this chapter are crucial to understanding Newton application architecture and data handling.


FIGURE 9.1 : A traditional model of data file types and storage.


Persistent Objects
Soups
Sharing Data between Applications
Stores
Union Soups
When Soups Get Created
Queries/Cursors
Soup Entries Are Self-Contained
Soup Entries Have a Unique ID
Soup Entry Compression

An online version of Programming for the Newton using Macintosh, 2nd ed. ©1996, 1994, Julie McKeehan and Neil Rhodes.

Last modified: 1 DEC 1996